1. home and garden
2. home furnishings
3. lamps and lighting

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P O SI TI V E I NP UT EXTR AC T
DR I MA STER H EAT
TEC H NI C A L I NF O R MATI O N
D RI M A ST E R HE AT ( P I V )
INCORPORATES AN INTEGRAL HEATER WHICH CAN BE SET TO PROVIDE
ADDITIONAL HEATING OF THE INCOMING AIR IF REQUIRED.
142
029 2085 8200
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P O SI TI V E I NP UT EXTR AC T
DR I MA STER H EAT
TEC H NI C A L I NF O R MATI O N
B E NE F I T S
INTEGRAL HEATER
INTELLIGENT HEAT RECOVERY
To provide additional heating of the incoming air if
required e.g. during very cold weather. The heater
can be used to distribute filtered, warmed air
throughout the property.
Twin sensors optimise energy efficiency, adjusting
settings to provide increased comfort.
RADON GAS CONTROL
FIRE DAMPER AND DIFFUSER FOR
3-STOREY ACCOMMODATION AVAILABLE
The diffuser is manufactured from aluminium and
powder coated to an off white finish (RAL 9003).
Product code Drimaster-3S.
Helps reduce and maintain radon gas levels.
EASY INSTALLATION & VERY LOW
MAINTENANCE REQUIREMENT
SYSTEM STANDBY MODE
Filter clean or replacement every 5 years.
SIGNIFICANTLY IMPROVES INDOOR
AIR QUALITY
Using positive input ventilation removes inddor air
pollutants such as carbon monoxide and keeps out
traffic fumes, pollen and outdoor pollutants.
CREATES A HEALTHIER LIVING
ENVIRONMENT
For summer months when loft temperature
exceeds 23oC.
High efficiency G4 filters removes up to 95% dust
particles.
HEALTH
FIT & FORGET OPERATION
Clinically proven to help allergy and asthma
sufferers.
Fully automatic when airflow set on installation.
WARRANTY
5 year warranty for peace of mind.
COMPLIES WITH THE BUILDING
REGULATION REQUIREMENTS
Meets Part F&L England and Wales and contributes
towards ‘conservation of fuel and power’.
INSTALLATION OPTIONS
Self tapping screws.
Ceiling diffuser.
Wood screw.
“L” shape metal brackets.
Unit mounted on roof joists using two ‘L’ shaped fixing brackets.
Download specification from www.nuaire.co.uk/specifications
Ceiling Diffuser.
nuaire.co.uk
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P O SI TI V E I NP UT EXTR AC T
DR I MA STER H EAT
TEC H NI C A L I NF O R MATI O N
DRIMASTER HEAT - HOW THE SYSTEM WORKS
Casing
The Drimaster-Heat provides whole home ventilation using the Positive Input Ventilation principle.
Essentially the concept is to introduce fresh, filtered air into the dwelling at a continuous rate, encouraging
movement of air from inside to outside.
To achieve this, the unit is mounted in the loft space, drawing air through the filters and inputting it, at ceiling
level, into the property. The Drimaster units are fitted with an internal temperature sensor. This sensor
continuously monitors the temperature in the loft, boosting the air volume when the loft temperature is
above a set level (heat recovery mode).
If the loft temperature becomes excessive the unit will switch to standby mode (no airflow).
Once installed, the airflow can be set to suit the house size and, if required, the way it responds to the
temperature changes within.
The Drimaster-Heat unit incorporates an integral
heater which can be set to provide additional
heating of the incoming air if required e.g. during
very cold weather. The heater can be used to
distribute filtered, warmed air throughout the
property.
DRIMASTER HEAT AIR DIFFUSER
AIR DIFFUSER WITH FIRE DAMPER
The unit shall be supplied with a purpose designed
polymer diffuser which provides efficient,
directional controllable air supply using side
blanking pieces supplied. The diffuser design shall
minimise the accumulation of any condensate run
off that may occur in the event of power to the unit
being switched off. The diffuser shall have been
independently assessed for behaviour in relation to
fire and adjacent smoke detectors.
For use in stairwells of three storey properties, the
optional powder-coated aluminium diffuser with
‘Fireblock’ provides 1 hour of fire resistance in
accordance with BS476 Part 20 and ISO834.
Ceiling
Hole in ceiling
200mm dia.
Studs
(A)
(B)
4 x MSx35mm
screws
Spacers
(C)
Fixing (C) to (B)
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029 2085 8200
Code description
DRIMASTER-HEAT
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P O SI TI V E I NP UT EXTR AC T
DR I MA STER H EAT
TEC H NI C A L I NF O R MATI O N
DRIMASTER HEAT - DIMENSIONS (mm)
Drimaster-Heat Unit
900
Filter
Filter
300
336
200 dia.
Unit heater &
control interface
290
Diffuser supplied.
70
8
25
33
303
195 dia.
303
Download specification from www.nuaire.co.uk/specifications
nuaire.co.uk
145
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P O SI TI V E I NP UT EXTR AC T
DR I MA STER H EAT
TEC H NI C A L I NF O R MATI O N
ELECTRICAL CONNECTION
ADJUSTING THE TARGET TEMPERATURE
Please note: the electrical connection of the unit must be be carried out by a
qualified electrician.
The occupier will normally require the heater to activate when the loft
temperature falls below a predetermined point.
We recommend that the heater set point be set at 10oC. (see figure below).
Electrical details:
Voltage:
Consumption:
Fuse rating:
Installer sets target temperature via the heater set point. The heater will
fluctuate on and off to maintain this temperature.
240V 1ph 50Hz
Normal running: 1.6W (min) 15.3W (max), up to
500W with heater at full load.
3 Amp
SPEED SETTINGS
The unit is supplied with a pre-wired power supply. This power supply unit has a
metal bracket incorporating fixing holes, which should be used to fit the power
supply to a suitable surface e.g. a wooden joist.
The fan unit is also supplied with a fused spur. The two core mains cable from the
power supply should be connected to a fixed wiring installation, via the isolator,
via the spur, in accordance with current IEE wiring regulations.
Typical wiring: Drimaster unit and heater can be wired up via 1 fuse spur, the
fuse spur must be fitted with a 3 Amp fuse.
IN
OUT
E
E
Heater
Drimaster
L
OUT
N
L
IN
N
240V
Supply ~
Ensure the fan is running before operating the heater.
If the heater should trip out the power should be isolated for several
minutes to allow the unit to reset the thermal trip.
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029 2085 8200
The unit has 6 Air Volume (speed) settings. The setting switch is located on the
side of the unit. The LED’s when illuminated, indicate the corresponding Air
Volume from the unit.
As an example, for a one bedroom bungalow, the unit should be set onto the
lowest setting (two lights on left). A five bedroom detached house would need to
be set on the highest speed (all three LED’s illuminated).
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P O SI TI V E I NP UT EXTR AC T
DR I MA STER H EAT
TEC H NI C A L I NF O R MATI O N
CO NSULTA NT S SP E CI FIC ATION
SPECIFICATION
Low energy positive input ventilation unit - for use in homes with a loft.
The unit shall be robustly constructed from flame retardant VO rated
ABS polymer and the casing shall be of spherical pattern with a flat
mounting base.
Flame retardant filters of G4 grade, surface area approx 0.47m2 (with 5
year typical maintenance period) shall be fitted, which may be removed
from the unit without the use of tools. The filters shall be arranged such
as to prevent their obstruction in the loft space.
A heater section incorporating a 500w heating element shall be fitted to the fan
unit. It shall be electronically controlled so as to minimise energy use.
A temperature sensor shall be fitted to the outlet of the heater and will control
the output of heater in an attempt to maintain the set point. The set point will
be adjustable between 2 and 20ºC.
The units “Fixed Temperature Heat Recovery” strategy shall be achieved
via a sensor located in the unit and shall improve energy performance
accordingly. An internal monitor shall record the unit’s operational time.
The unit shall be offered with a 5 year warranty.
The unit shall incorporate a forward curved centrifugal impeller and high
efficiency brushless DC motor fitted with sealed for life, self lubricating
bearings and locked rotor protection. The unit’s average power
consumption shall be 0.16 watts per l/s of airflow (without heater element
operational).
For information on reducing radon egress, it is suggested that the details
given in Positive pressurisation: a guide to radon remedial measures in
existing dwellings may be considered.
The unit shall be supplied with a length of flexible ducting, and all
necessary connectors and fixings.
The unit will be supplied with brackets for fitting to joists.
The unit shall be supplied with a purpose designed flame retardant
polymer diffuser for efficient, direct able air input. The diffuser design
shall be optimised for use in areas where smoke detectors are fitted.
The unit shall include 5 programmable temperature control strategies,
6 volume control settings and an optional high duty boost setting
providing an airflow rate of 70l/s for optimum performance and
occupant comfort.
Download specification from www.nuaire.co.uk/specifications
nuaire.co.uk
147